ABO Professional Knowledge 3

Question 1

In the ABO Discrepancy Index (DI), a higher score indicates:

Accepted Answer

A more complex and severe malocclusion

Answer

The Discrepancy Index quantifies pretreatment case complexity; higher scores mean greater difficulty.

Question 2

Which tool does the ABO use to objectively grade the quality of completed treatment outcomes?

Accepted Answer

Cast-Radiograph Evaluation (CRE)

Answer

The Cast-Radiograph Evaluation scores the finished result against measurable objective criteria.

Question 3

How many criteria are assessed in the ABO Cast-Radiograph Evaluation?

Accepted Answer

8

Answer

The CRE evaluates 8 criteria including alignment, marginal ridges, overjet, and root angulation.

Question 4

Which of the following is NOT one of the eight ABO Cast-Radiograph Evaluation criteria?

Accepted Answer

Patient satisfaction score

Answer

Patient satisfaction is subjective and is not one of the objective CRE measurement criteria.

Question 5

In the CRE, points are deducted for deviations. A perfect ideal result would score:

Accepted Answer

0 points

Answer

The CRE is a penalty-based system where an ideal outcome accumulates zero deduction points.

American Board of Orthodontics (ABO) Practice Test